Blind-hinge.



UNITED STATES PATENT OFFICE.

JOHN G. J. DAVIS, OF-AUGUSTA, GEORGIA.

BLIND-HINGE.

S1?]510111161ATI01W.forming` part of Letters Patent No. 671,819, dated April 9, 1901.

Application filed September 27, 1990. Serial No. 31,259. (No model.)

To all whom it may concern:

Beit known that I, J oHN G. J. DAVIS, a citizen of the United States, residing at Augusta, in the county of Richmond and State of Georgia, have invented certain new and useful Improvements in Blind-Hinges; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to blind-hinges.

The object of the invention is to provide a hinge of this character which shall be simple of construction,durable in use, comparatively inexpensive of production, and the parts of which are capable of being locked in different positions to hold the blind at various angles to the window-frame and prevent it slamming when in open position or being surreptitiously opened when in closed position.

With this and other objects in view the invention consists in certain features of construction and combination of parts,which will be hereinafter more fully set forth.

In the accompanying drawings, Figure 1 is a perspective view of a portion of a windowframe and a portion of the blind, showing the blind in closed position. Fig. 2 is a similar view showing the blind open, and Fig. 3 is a cross-sectional view through the parts when the blind is swung in position to be removed from the window-frame.

Referring to the drawings, 1 denotes the window-frame, and 2 the blind.

3 denotes the upper set of hinges, which may be of any well-known or approved construction, and 4 denotes the lower set of hinges. The present invention lies in the lower set. This set comprises two sections a and b. The section a is secured to the window-frame and the section b to the blind. The section ct is preferably stamped out of a single pi'ece of sheet metal of proper strength and comprises av vertical plate or and a segmental portion a?, which is provided with an angular recess a3, which embraces the window-frame. The periphery of the segmental portion is provided with notches a4, a central pintle-aperture a5, and with a peripheral recess a. The section b may be of any suitable construction and proportions to adapt it to blinds of wooden or brick buildings and is preferably struck up from a single piece of sheet metal of proper strength and comprises the attaching plate portion b and the pintlehead bz, the pintle b3 of which' is adapted to take into the pintle-aperture a5. To give additional strength to the pintle-head, I crease it, as shown at b4, although this is not an absolutely essential feature.

c denotes a locking-lever, preferably camshaped and pivoted to aplate d, secured to the base-wall of a recess e, formed in the corner of the blind near its lower edge. The

blind is provided with a transverse kerf f,

which registers with a slot g, formed in said plate, thus permitting the blind to be swung upon its pintle, with the plate d extending into said kerf and slot, thus preventing the upward movement or lifting of the blind with respect to the window-frame except when the blind is arranged or thrown out in the position shown in Fig. 3, in which position it may be removed for any desired purpose.

From the foregoing description, taken in connection with the accompanying drawings, the construction, operation, and advantages .of the invention will be readily understood without requiring an extended explanation. The hinge consists of but four parts-namely, the two hinge-sections, the plate, and the cam-lever-and as all of these parts are preferably struck out of sheet metal' in such a manner as to insure great strength and durability a very inexpensive locking-hinge is produced without sacrificing strength in construction and durability in use.

Various changes in the form, proportion,

and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

Having thus fully described my invention, what I claim, and desire to protect by Letters Patent, is-` 1. A hinge comprising two sections, one of which is provided with a segmental portion having a notched periphery and formed with a central pintle-aperture and with a peripheral recess, the other section adapted to be secured to the blind and to the pintle-head to take into the pintle-aperture, a plate adapted to be secured to the edge of the blind and provided with a transverse slot into which IOO the periphery of the segmental portion projects, and a lever pivoted to said plate and adapted to engage the peripheral notches of said segmental portion, substantially as set forth. Y

2. The combination With a window-frame and blind, of hinge-sections, one secured to the blind and the other secured to the window-frame, the one secured to the windowframe being provided with a segmental portion having a notched periphery and a recess extending inwardly from the periphery, said blind being provided with a transverse kerf, a plate secured to said blind and having a slot JOHN G. J. DAVIS.

Witnesses:

C. L. DAVENPORT, Jr., T. A. RIVERS.. 

